package test;import com.opensymphony.xwork2.ActionSupport;
import javax.servlet.http.*;
import org.apache.struts2.ServletActionContext;
import com.opensymphony.xwork2.ActionContext;
import java.util.*;
public class HelloAction extends ActionSupport {public String jname = "";public String jid = "";@Overridepublic String execute() throws Exception {// TODO Auto-generated method stubreturn super.execute();}private String str = "";public String hello() {this.str = "hello!!!";System.out.println("方法一，把参数作为Action的类属性,让OGNL自动填充：");System.out.println("jname:" + jname + "  jid:" + jid);ActionContext context=ActionContext.getContext();  HttpServletRequest request = (HttpServletRequest)context.get(ServletActionContext.HTTP_REQUEST);System.out.println("方法二，在Action中取得HttpServletRequest对象，使用request.getParameter获取参数");System.out.println("jname:" + request.getParameter("jname") + "  jid:" + request.getParameter("jid"));Map  parameterMap=context.getParameters();    String bookName2[]=(String[])parameterMap.get("jname");    String bookPrice2[]=(String[])parameterMap.get("jid");    System.out.println("方法三，在Action中使用ActionContext得到parameterMap获取参数：");    System.out.println("jname: " +bookName2[0]);    System.out.println("jid: " +bookPrice2[0]);  return "success";}public String getStr() {return str;}public void setStr(String str) {this.str = str;}public String getJname() {return jname;}public void setJname(String jname) {this.jname = jname;}public String getJid() {return jid;}public void setJid(String jid) {this.jid = jid;}
}